´ÙÀ½Àº ÃʵîÇб³ 1~2 Çг⠰úÁ¤ÀÇ ¼öÇÐÀÔ´Ï´Ù.
¼öÇÐÀ» Á¢ÇØ ÁֽŠºÐµéÀº ¾Æ½Ç °Å°í...Á¢ÇØ ÁÖÁö ¸øÇϽŠºÐµéÀ» À§ÇØ Âü°í·Î ¿Ã¸³´Ï´Ù.
Âü°í¶ó´Â °ÍÀº ÀÌ ÀÚ·áµéÀÌ ÁÖ ÀÚ·á°¡ ¾Æ´Ï¶ó´Â ¶æÀÔ´Ï´Ù.
Àß ÇÏ´Â ¹æ¹ý¿¡´Â ¿©·¯°¡Áö ÀÖÀ» °Å°í ¸ðµÎ ¸¹Àº ¿¬±¸¿Í °æÇèÀ» ÅëÇؼ­ ¾ò¾î³½ °ÍÀ̹ǷÎ
±×°ÍÀÌ ¸Â´Ù ÇÏ°ÚÁö¸¸ Àڱ⸸ÀÇ ¹æ¹ýÀ» ã±â¶õ ½¬¿î ÀÏÀÌ ¾Æ´Õ´Ï´Ù.

ÀÚ·á´Â Á¤¸» ¸¹°í ±×°ÍÀ» ¾î¶»°Ô È°¿ëÇÏ´À³Ä¿¡ µû¶ó ¸¹Àº Â÷ÀÌ°¡ ÀÖ½À´Ï´Ù.
Àû¾îµµ ¿©±æ ÁÖ·Î ´Ù´Ï½Ã´Â ºÐµéÀº ÁÁÀº Ãë¹Ì¸¦ °¡Á³´Ù°í ÇØ¾ß ÇÏ°Ú½À´Ï´Ù. (Àú¸¦ Æ÷ÇÔÇؼ­)
Á¦°¡ ¹ßÀ½, Àбâ, ¸»Çϱ⠵îÀ» »¡¸® ³¡³»¾ß ÇÑ´Ù°í ¸»¾¸ µå·È´Âµ¥¿ä...
¸á º¸³»½Ã¸é Á¤¸» Ȳ´çÇÏ°Ô °£´ÜÇϸ鼭µµ È¿°ú°¡ Å« ¹æ¹ýÀ» ¾Ë·Á µå¸®°Ú½À´Ï´Ù.
¸¹Àº ÀÚ·á¿¡ ´ëÇؼ­´Â ¸î °¡Áö ¹®Á¦°¡ ÀÖÀ¸¹Ç·Î Â÷Â÷ Ç®¾î³ª°¡µµ·Ï ÇÏ°Ú½À´Ï´Ù.

What is it?
(Writing and Solving One-Step Linear Equations in One Variable)

Equations statements that say that two quantities are equal.
Numerical equations, such as 7 + 9 = 16, include only numbers.
Algebraic equations, such as 12 ? y = 2, include at least one variable.
Solving an algebraic equation is like solving a mystery.
You are seeking the value of the variable that will make the equation a true statement.
For example, in the equation x + 2 = 7, the value x = 5 makes the equation 5 + 2 = 7
a true statement.
Notice that the variable x in the equation is raised only to the first power.
When the variable in an equation is raised to the first power, the equation is called linear.
When the variable in an equation is raised to a power greater than one,
the equation is not linear.
For example, the equation 9 - S(3½Â) = 1 is not linear because the variable S is raised to
the third power.

When solving a linear equation, students should keep in mind three important ideas.
The first is that they are trying to get the variable onto one side of the equation, by itself.
To do this, they employ the second idea, that is,
use the inverse operation to undo what was done to the variable.
Look at the examples below.

Type of Equation Example Operation to Use
Addition Equation x + 3 = 5 Subtract 3
Subtraction Equation y - 4 = 3 Add 4
Multiplication Equation 2x = 12 Divide by 2
Division Equation x / 3 = 5 Multiply by 3

(À§ÀÇ °ÍÀº Ç¥ÀÔ´Ï´Ù. ÁÙÀÌ ±×¾îÁø °ÍÀ¸·Î º¸¼¼¿ä. ³ª´©±â´Â µû·Î Ä¥ ¼ö ¾ø¾î¼­ ÄÄÀÇ ±âÈ£·Î...)

The third idea to keep in mind is that an equation is similar to a balance scale.
You are given two quantities that are in balance.
In order to solve the equation, you need to keep the equation balanced by doing the exact same thing to both sides of the equation.
Therefore, if you add four to one side of the equation, you must add four to the other side of the equation to keep in balance.

Let's apply these three ideas to some specific equations.
Given the equation 3x = 12, you want to isolate the variable x.
In order to do this, you must undo what was done to the variable x.
Sice x was multiplied by 3, use the inverse operation of multiplication and divide x by 3.
To keep the equation in balance, you will then need to divide the other side by 3.
Dividing both sides of the equation by 3 gives a value of x = 4.

Applying these same ideas to the equation x - 7 = 13, you begin by getting x by itself.
To do this, undo the operation of subtracting 7 by adding 7 to the variable.
Then add 7 to the other side of the equation to keep the equation balanced.
The solution is x = 20.

Writing an algebraic equation often involves translating a written statement into algebraic form.
The variable in the equation represents the number you need to find.

It is very helpful to make use of the four-step process of problem solving when writing an equation: (1) understand, (2) plan, (3) solve, and (4) look back.
This process is described in the problem-solving lessons.
Let's apply this four-step process to the following problem.
Have students try to visualize what is happening as you read the problem.

......